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<p>We present a hybrid quantum system with two microwave cavities, each embedding a YIG sphere that interacts through an intermediate atomic ensemble placed at their intersection. We enable indirect entanglement between subsystems by modifying system parameters like coupling rates and frequency detunings. The atomic ensemble functions as a coherent mediator, enabling enhanced quantum correlations through collective coupling dynamics. Entanglement is quantified using logarithmic negativity, revealing optimal regimes where bipartite entanglement remains robust and stable. Our results suggest a viable path for engineering controllable entangled states in complex hybrid architectures, offering practical relevance for future quantum networks, modular devices, and integrated quantum platforms.</p>

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Magnon-Atom Entanglement in a Hybrid Magnomechanical System

  • 期刊论文

  • 发表日期：

    2026年4月28日

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  • Muhammad Muneeb,
  • Zainab Khalid,
  • Muhammad Atif Nawaz,
  • Khalid Naseer,
  • Amjad Sohail Shah

摘要

We present a hybrid quantum system with two microwave cavities, each embedding a YIG sphere that interacts through an intermediate atomic ensemble placed at their intersection. We enable indirect entanglement between subsystems by modifying system parameters like coupling rates and frequency detunings. The atomic ensemble functions as a coherent mediator, enabling enhanced quantum correlations through collective coupling dynamics. Entanglement is quantified using logarithmic negativity, revealing optimal regimes where bipartite entanglement remains robust and stable. Our results suggest a viable path for engineering controllable entangled states in complex hybrid architectures, offering practical relevance for future quantum networks, modular devices, and integrated quantum platforms.